Im sure they're a real threat against creatures of similar size that can breathe super-hot fire, possess fangs powerful enough to crush diamonds even as infants (and claws that are most likely as strong too), and are covered from top to bottom in scales of legendary mythological durability.

Would be nice were it not for the fact that Spike is nowhere near 300 ft. In this comic he is only 131 ft tall, just about a third of the Ursa Major's height. The difference in size is something like a medium dog attacking a really buff guy. Spike never crushed a diamond, just gems which is a pretty big difference. The Ursa Minor tanked lightning with ease, something hotter than lava, and is simply more muscular than a dragon. Another thing to mention, if the Ursa is made out of stars, could it possibly blast solar radiation?

-There's no canon height for the Ursa Major. Also, if you compare the size of the Ursa Minor in the show to a pony, and then compare the Ursa Major's size to an Ursa Minor, the U.Major still only looks as big as the dragons on this comic, not bigger. Ponies in this story are about the size of a dragon's toe-nail. U.Major's wouldn't be that far.

-Even in the show, dragons aren't the same size as an Ursa Minor. They're bigger, as the Ursa Minor was only taller than a house when it stood on 2 legs, while Greed Spike towered over houses which only reached up to his waist. Ursa Majors are bigger than dragons yes, but not by as much as you're saying.

-Diamonds ARE gems my friend.

Dragons/Spike haven been show to eat all kinds of gemstones, so just because its never been said he ate a "diamond" outloud, it doesn't mean that's where he stops. Dragons eat all gems and that's as far as canon goes w/o bringing personal feelings to "believe" he shouldn't be able to for no reason whatsoever.

-That lightning? Really? You're gonna use Trixie's little jolt as an argument only because how things work in RL, into a world of technicolor talking ponies? Good lord, even PONIES have tanked those little things whenever a Pegasus messes up. Its a little shock and then they're fine. Yet you saw Twilight's reaction when the teen dragons started jumping into the lava pool. TOTALLY the same thing, right?

-Solar Radiation?

As of now, Ursas in MLP being anything other than giant furballs is just fanfiction. Fanfiction =/= Argument.

And even with all this, it doesn't matter. Even if U.Majors are bigger than the dragons here (which they aren't), you just can't deny the many advantages dragons have over them.

The figure for the Ursa's height comes from simple deduction comparing it to the Ursa Minor(25 ft at the hump and about 30 when upright). The dragons in this comic are only 40 meters tall as stated in one of the drawings. An adult Ursa Major easily dwarfs a dragon.

I know diamonds are gems but that doesn't mean dragons eat them. There is no evidence to suggest this. Just because a T-rex ate meat doesn't mean it ate Mosasaurs.

The only ponies that have tanked lightning are pegasi, which are have some sort of weather manipulation to handwave that.

One more thing to mention about the Ursa's durability, in Canterlot Wedding it is shown that Twilight can fire magic bolts strong enough to punch through stone like nothing. She didn't attempt these against the Ursa Minor so it is likely to assume that it would simply tank them.

Another thing, if Ursas are just giant furballs, how come Trixie used them as a benchmark? Would she not lie about herself defeating the strongest creature instead of a giant furball?

Dragon fire isn't that hot considering Twilight took a blast of it to the face and wasn't even scratched.

Second, if you consider an Ursa Minor to be 30 feet when upright, then 300 feet for an U.Major is an absolute, off-the-charts exageration. The parent was, at most, 5 times larger than its cub...not 10.

And third, we can do al the comparitons and deductions we want, but in the end, the Ursa Minor was barely taller than a 2 story house when standing on its hind legs, while a clear shot of Greed Spike opening up a rooftop showed him to be at least 3 times taller than the same type of house.

That's all the compariton you need.

And yes, Ursa Majors are bigger than dragons (in the show) but not by as much as you make them out to be. They'd only be about 1.5 (2 times at most) times bigger, which is still not nearly enough to make up for the MASSIVE physical advantages that dragons are naturally born with.

Also, 1 meter = about 3 feet.

So 40 meters = about 120 feet.

Even by your calcs, that still makes these dragons 4 times bigger than an Ursa Minor.

Which puts them at about the same height as an Ursa Major.

About the gems: That's not how it works. Dragons are stated to eat gems. All gems so far, with no distinction. Every time a dragon eats gems, the show has NEVER shown, mentioned or even hinted that there's one specific gem they can't eat. And if the show doesn't do that, then you simply can't arbitrarily "decide" that there's one they can't eat to try and downplay the strength of their fangs.

Not only that, but the simple fact that Spike and all other dragons just grab and casually throw handfuls of gems (normally without even looking at them individually) into their mouths, should already be more than enough proof that they're not "worried" about there being a gem they can't chew on. So either you show any evidence that there IS one they can't eat, or we go by the show's canon. And that is, that dragons eat all gems without distinction.

About the lightning: It doesn't matter. Pegasus are not more resistant to damage than other ponies. They just have wings and can stand on clouds. That's it. The lightning jolts of lightning they produce are NOT the same as real world thunder. If we've seen ponies take them with hardly any damage, then trying to use them as an argument for an Ursa's dirability makes no sense. If anything, it shows the bear's hide is almost as resistant as a pony's, which actually makes sense as they take the same little lightnings the same way.

About Twilight's beams: Just like an Ursa of that size would tank middle-sized rocks (like the ones Twilight destroyed) no problem, it also can probably tank those beams as well. You're overestimating Twilight's beams there, since destroying a small rock wall is something even Iron Will could probably do. That wall was human/pony-sized. Against something the size of an Ursa? It would probably just annoy him. Or it could be Twilight knew that Ursa was a cub, and didn't want to hurt it. Whichever fits more. The point is, Twilight's beam are not anti-Kaijuu attacks (they're meant to hurt pony-sized targets) so don't treat them as such.

And we're comparing an Ursa's durability against a DRAGON's attacks, not a Pony's.

About Trixie's boasting: Because Ursas ARE a big deal for Ponies.

You have to understand that ponies, as a general species, are not capable of fighting off larger monsters like that. You have the Alicorn princesses, but you can count them with your hand, while the rest of the pony race is a different thing alltogether.

You go to a pony town boasting that you defeated an Ursa, you're gonna be treated as a hero because ponies, even in large groups, are normally helpless against a creature like that. If a pony goes and says she defeated a dragon though (and they believe her, which I doubt) she's gonna be made into a fucking legend, with parades, monuments and songs in her honor.

But none of that matters here, because we're talking about Dragons, not ponies.

About Dragon Fire:....Really?

You're gonna count the fire of a BABY dragon (smaller than even fillies) as an actual representation of the power of a dragon's fire, which can apparently singe the scales of a creature that swims around in lava no problem? C'mon dude. Get real.

Well yeah, its pretty obvious unless someone has a personal issue against dragons or something.

Dragons are mythological creatures that are portrayed in many tales, cultures, stories, etc as being literally MADE for battle. Every single part of their anatomy is made for the highest levels of combat. From their scales which can deflect most attacks, to their mere breath that is able to bring death to most creatures in the blink of an eye.

I'd also find it silly to underestimate the physical offensive power of a creature whose fangs can chew through diamonds even when they're still babies. Given that, can you even imagine the strength of an adult dragon's fangs?

So...what is an Ursa then?

An Ursa is a giant, colorful bear.

Nothing more, nothing else. A bear is a large furry animal with regular sharp claws. That's all there is to it, so assuming that a size increase would allow them to fight evenly with the mightiest mythical beast, is nothing short of ridiculous.

Twilight didn't use her Magic Bolts BECAUSE SHE WASN'T TRYING TO KILL THE GIANT BABY BEAR. Twilight isn't a warrior, she isn't going to jump right into the most violent solution to solve a problem. That's why she ran away from the very dragons that are now Kaiju sized abominations in this comic based on a fanfic; she was TRYING to avoid danger in the first place. Her actions in the Canterlot mines happened under a completely different set of circumstances that just don't apply to the situation or the argument you are trying to present, like say, EQUESTRIA IN IMMINENT DANGER and percieved betrayal from someone that she had known all her life and apparently left her TO DIE IN THE CAVES?

No, man, at this point, you are trying to make the star beast into some sort of unstoppable monster even though there isn't any evidence of it in the show canon which normally avoids violent situations. Just enjoy the damn comic and the efforts of the artist and stop wasting your time on a senseless debate.

Sorry. I kinda got angry because it seemed you were just dragging out something that shouldn't be dragged on. I don't deny Ursas are powerful, but the truth is, we don't know where a full grown Ursa would stand in terms of power next to the Kaiju Dragons in the comic and fanfic. It probably would have been better to just point you into asking the author of the fanfic the comic is based on if you really want to confirm or debunk which is stronger.

Also, I had a bad evening yesterday. Still reeling in from that. I hope you understand how that goes.

No Spike is in complete comtrol of himself. Also I think this is he's thread adult form. If you count the version from his fanstasy, the one when Twilight first got her cutie mark and the greed growth one. Also gods above and below I wish one of this verson would have bloody wing, is that hard to have him grow wings?